| 초록 |
Conductive failure during the device operation can cause unexpected shutdown of whole electronic devices. Here, we propose a light-powered healable electrical conductor for simple-, fast-, and easy-to-implement wearable devices. Contrary to previous conductive healing systems such as capsules, heat, water, and mechanical forces, green light even with relatively low intensity has potential to provide repetitive recovery of a damaged electrical conductive pathway without any direct invasion and within a few minutes. Also, the multiple cracks resulting from vigorous motions of wearable devices can be simultaneously recovered regardless of the light incident angles and crack propagation directions, thus, making light-powered healing more accessible to wearable devices. To develop the key concepts of this system, combined studies on materials, integrations, and light-powering strategy for recovering a damaged wearable electrical conductor are systematically carried out in the present work. |
